From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: ATI VGA passthrough and S400 Synchronization module Date: Tue, 31 Jul 2012 19:12:46 -0400 Message-ID: <20120731231246.GD32698@phenom.dumpdata.com> References: <36774CA35642C143BCDE93BA0C68DC5702C0AE46@dulac> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <36774CA35642C143BCDE93BA0C68DC5702C0AE46@dulac> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: =?iso-8859-1?Q?Aur=E9lien?= MILLIAT Cc: "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org On Tue, Jul 24, 2012 at 04:05:20PM +0000, Aur=E9lien MILLIAT wrote: > Hi, > = > I'm currently trying to use XEN on graphical cluster. > VGA passtrough works fine and I'm able to use quad-buffer for active ster= eo. > The last thing to do is to synchronize all GPU from the cluster. > For this purpose I use ATI FirePro S400 and it didn't works. > = > I've seen two behaviors: > -When I run lspci command on Dom0 I've got: > 0f:00.0 VGA compatible controller: ATI Technologies Inc Device 6888 > 0f:00.1 Audio device: ATI Technologies Inc Cypress HDMI Audio [Radeon HD = 5800 Series] > And sometimes just > 0f:00.0 VGA compatible controller: ATI Technologies Inc Device 6888 > -When a DomU(Windows 7) is running, it's very slow (I can't do anything) = and crash after several minutes. > I've tried with the unstable version and I've seen the same 'lspci' behav= ior. > = > I've a couple of questions: > Is it possible to passthrough a VGA with this extension? I never tried. I just pass in the VGA card and don't try to pass in the HDM= I driver. > As it's a particular use of VGA passtrough is it planned to able to use s= ynchronization module? So what is synchronization module for you? That is the HDMI part? > Is it easy to add this feature (time cost)? > = > Computers : HP Z800 workstation > GPU: ATI FirePro V8800 > CPU: Intel Xeon E5640 > MB: Intel 5520 chipset > = > XEN : > Version 4.1.2 > With ATI patch from http://old-list-archives.xen.org/archives/html/xen-us= ers/2011-05/msg00048.html > Thanks, > Aur=E9lien Milliat > = > = > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel